問題詳情

118. As the airplane is taking off, passengers should return their seat backs to full upright and _______their seat belts.
(A) lock
(B) fastened
(C) fasten
(D) secure

參考答案

答案:C
難度:適中0.597561
統計:A(17),B(11),C(49),D(2),E(0)

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